(CNN) — The deaths of the U.S. ambassador and three other Americans amid protests against a film that denigrates Islam has sparked global discussion and debate about whether there is a line between free speech and hate speech and, if so, where it lies.

“They don’t regard perceived insults to the Prophet Mohammed or the Quran as being protected by free speech, they regard it as a capital offense,” says Peter Bergen, CNN’s national security analyst, referring to protesters in Libya and Egypt, where the U.S. Embassy was attacked, who were angered by the film.

According to The Wall Street Journal, the movie was made by a real estate developer who wanted to portray Islam as a hateful religion. The attack on the U.S. personnel in Benghazi, Libya, was orchestrated by extremists who used the protests as a diversion, U.S. sources told CNN…